US20080303366A1 - Electric fan and casing thereof - Google Patents
Electric fan and casing thereof Download PDFInfo
- Publication number
- US20080303366A1 US20080303366A1 US11/808,198 US80819807A US2008303366A1 US 20080303366 A1 US20080303366 A1 US 20080303366A1 US 80819807 A US80819807 A US 80819807A US 2008303366 A1 US2008303366 A1 US 2008303366A1
- Authority
- US
- United States
- Prior art keywords
- casing
- electric fan
- fixing member
- corner elements
- fixing members
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
- F04D29/526—Details of the casing section radially opposing blade tips
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
- F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/64—Mounting; Assembling; Disassembling of axial pumps
- F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
- F04D29/646—Mounting or removal of fans
Definitions
- a R.O.C. Patent No. M287881 disclosed an “Electric Fan Frame”, which comprises a plurality of guide vanes, wherein the guide vanes connects with each other via at least one rib strips.
- the guide vanes are not arranged concentrically but along curves.
- the guide vanes define an opening where a fan is installed, and the fan comprises a plurality of fan blades. Via the shape and arrangement of the guide vanes, the air input and output of the electric fan is obviously increased.
- the present invention thus proposes an electric fan and a casing thereof, which has detachable casing walls, wherein the four corner elements of a casing define an assembly space where an electric fan is accommodated; first fixing members and second fixing members are respectively formed in corner elements and casing walls; the first and second fixing members can thus be assembled together or separated apart.
- the present invention comprises: a casing 10 , an electric fan 13 , and at least one casing wall 20 .
- the casing 10 has four corner elements 11 defining an assembly space 12 .
- the electric fan 13 is accommodated in the assembly space 12 and has a motor seat and fan blades (not shown in the drawing).
- the electric fan 13 is supported in the assembly space by a plurality of rib strips 14 connecting the electric fan 13 with the corner elements 11 .
- the casing walls 20 are respectively arranged in between each two corner elements 11 .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention discloses an electric fan and a casing thereof, wherein the casing wall can be arbitrarily detached to from an air flow inlet. The four corner elements of the casing define an assembly space where the electric fan is accommodated. First fixing members and second fixing members matching each other are respectively formed in the corner elements and the casing walls; the first and second fixing members can thus be assembled together or separated apart. Thereby, an electric fan casing having detachable casing walls is thus achieved.
Description
- The present invention relates to an electric fan and a casing thereof, particularly to an electric fan and a casing thereof, wherein a casing wall can be arbitrarily detached to create an air flow inlet meeting the usage environment.
- Generally to speak, a computer or another electronic device has various elements and circuits, such as CPU, power supplies, and circuit boards. When a computer or electronic device operates, current flowing through chips or circuits generates a lot of heat. Thus, an electric fan is needed to inhale cool air to dissipate heat lest accumulated heat raise temperature and damage elements or circuits, which will causes the computer or electronic devices to malfunction or shortens the service life thereof.
- Most conventional heat-dissipation electric fans inhale and exhale unidirectionally, which usually cannot dissipate the heat accumulating in local regions inside the housing of an electronic device. To solve such a problem, most manufacturers pay attention to raise fan blade rotation speed and improve fan blade structure to increase air input of an electric fan. However, the wind-shear induced noise increases with the rotation speed of an electric fan. Besides, the effect of improving fan blade structure is very limited. Therefore, raising fan blade rotation speed and improving fan blade structure cannot really solve the problem that heat accumulates in local regions inside the housing of an electronic device.
- A R.O.C. Patent No. M287881 disclosed an “Electric Fan Frame”, which comprises a plurality of guide vanes, wherein the guide vanes connects with each other via at least one rib strips. The guide vanes are not arranged concentrically but along curves. The guide vanes define an opening where a fan is installed, and the fan comprises a plurality of fan blades. Via the shape and arrangement of the guide vanes, the air input and output of the electric fan is obviously increased. Another R.O.C. publication No. 535859 also disclosed an “Electric Fan Frame”, wherein the electric fan frame has an opening, and air inlets are formed in the laterals of the electric fan frame, including the holes formed in the surfaces and recesses of the laterals of the electric fan frame and the auxiliary air inlets formed inside the recesses and radially open to the perimeter of the electric fan arranged in the opening. When the electric fan operates, air can enter from the opening, the holes and the auxiliary inlets. Thus, the air intake area increases, and air output rises. Although the abovementioned conventional technologies can increase air input and raise air output to some extent, they still have problems. The spacing of the guide vanes or the air inlets is too small to effectively increase air input and is apt to create wind resistance and wind-shear noise. Therefore, the abovementioned conventional technologies are hard to effectively dissipate heat of electronic devices and meet consumers' need.
- The primary objective of the present invention is to provide an electric fan and a casing thereof to solve the abovementioned problems, wherein a casing wall can be arbitrarily detached to create an air flow inlet meeting the usage environment to effectively increase air input and air output of the electric fan and reduce heat locally accumulating in electronic devices.
- Another objective of the present invention is to reduce noise generated by wind shear, wherein a casing wall is detached to reduce air suction resistance and effectively decrease wind-shear noise to achieve a quiescent state.
- The present invention thus proposes an electric fan and a casing thereof, which has detachable casing walls, wherein the four corner elements of a casing define an assembly space where an electric fan is accommodated; first fixing members and second fixing members are respectively formed in corner elements and casing walls; the first and second fixing members can thus be assembled together or separated apart.
-
FIG. 1 is a perspective view schematically showing the appearance of an electric fan and a casing thereof according to the present invention. -
FIG. 2 is an exploded view schematically showing the structure of an electric fan and a casing thereof according to the present invention. -
FIG. 3 is a sectional view schematically showing the assembled structure of an electric fan and a casing thereof according to the present invention. -
FIG. 4 is a diagram schematically showing the air flow in an electric fan and a casing thereof according to the present invention. -
FIG. 5 is a diagram schematically showing a different type casing wall according to another embodiment of the present invention. -
FIG. 6 is a diagram schematically showing the integration of the casing walls and the corner elements according to further another embodiment of the present invention. - Below, the technical contents of the present invention will be described in detail in cooperation with the drawings.
- Refer to from
FIG. 1 toFIG. 3 respectively a perspective view, an exploded view and a sectional view schematically showing an electric fan and a casing thereof according to the present invention. The present invention comprises: acasing 10, anelectric fan 13, and at least onecasing wall 20. Thecasing 10 has fourcorner elements 11 defining anassembly space 12. Theelectric fan 13 is accommodated in theassembly space 12 and has a motor seat and fan blades (not shown in the drawing). Theelectric fan 13 is supported in the assembly space by a plurality ofrib strips 14 connecting theelectric fan 13 with thecorner elements 11. Thecasing walls 20 are respectively arranged in between each twocorner elements 11. Thecasing 10 has first fixingmembers 15, and thecasing walls 20 havesecond fixing members 21 corresponding to thefirst fixing members 15. In the embodiment shown in the drawings, thefirst fixing member 15 includes aslide way 151, and thesecond fixing member 21 includes aslide track 211 matching theslide way 151. However, the present invention does not limit thefirst fixing member 15 and thesecond fixing member 21 to be aslide way 151 and aslide track 211. The first/second fixing member 15/21 further comprises a convex/concave member 212/152. When assembled, the convex andconcave members second fixing members electric fan 13 and thecasing 10 thereof having thedetachable casing walls 20 are attained. - In one embodiment of the present invention, each two
corner elements 11 has onecasing wall 20 therebetween, and thecasing wall 20 is engaged with thecorner element 11 via theslide track 211 of thesecond fixing member 21 and theslide way 151 of thefirst fixing member 15. When theslide track 211 is completely placed inside theslide way 151, the convexmember 212 is also press-fit into theconcave member 152 to perform a position-limiting function. Refer toFIG. 4 . Thecasing wall 20 can be removed via disengaging thefirst fixing member 15 from thesecond fixing member 21. After thecasing wall 20 is removed, the original position forms anair flow inlet 16. Therefore, when theelectric fan 13 and thecasing 10 thereof is used to dissipate heat, such as used in CPU of a computer or a power supply, air suction will not retarded by a barrier, such as the housing of a power supply. Then,fan blades 132 on amotor seat 131 can operate normally. Refer toFIG. 5 . As the present invention adopts a detachable design ofcasing walls 20, thecasing wall 20 can be replaced by acasing wall 20′ having a height less than that of thecorner element 11 if necessary. Thus, acasing wall 20′ is still maintained in between twocorner elements 11, and anair flow inlet 16′ is still maintained above thecasing wall 20′. - Refer to
FIG. 6 . In addition to thedetachable casing wall 20 and the replaceable different-height casing wall 20′ described in the abovementioned embodiments, the present invention also comprises a one-timedetachable casing wall 20 in another embodiment; once thecasing wall 20 is detached, it can not be recovered any more. In this embodiment, the first andsecond fixing members connection member 30. In the manufacturing process, thecasing 10, thecasing walls 20 and theconnection members 30 are fabricated into a one-piece part by an injection molding technology. When the usage environment requires an air flow inlet (not shown in the drawing), thecasing wall 20 can be removed from thecasing 10 via applying force to break theconnection members 30. In a preferred embodiment, theconnection member 30 is fabricated to have a thickness and a width less than those of thecasing wall 20 to facilitate separating them with force. - Those described above are only the preferred embodiments to exemplify the present invention but not to limit the scope of the present invention. Any equivalent modification or variation according to the spirit of the present invention is to be also included within the scope of the present invention.
Claims (5)
1. An electric fan and a casing thereof comprising:
a casing having four corner elements to define an assembly space;
an electric fan accommodated in said assembly space;
at least one casing wall arranged in between each two corner elements,
wherein said casing has first fixing members at said corner elements, and said casing walls have second fixing members corresponding to said first fixing members; said first fixing member and said second fixing member can be assembled together or separated apart to realize an electric fan and a casing thereof having detachable casing walls.
2. The electric fan and the casing thereof according to claim 1 , wherein said first fixing member and said second fixing member is a set of slide way and slide track matching each other.
3. The electric fan and the casing thereof according to claim 1 , wherein said first fixing member and said second fixing member further comprises a set of concave member and convex member, which forms a position-limiting relationship when assembled.
4. The electric fan and the casing thereof according to claim 1 , wherein said first fixing member and said second fixing member are integrated into a connection member.
5. The electric fan and the casing thereof according to claim 1 , wherein said electric fan is coupled to said corner elements with a plurality of rib strips.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/808,198 US20080303366A1 (en) | 2007-06-07 | 2007-06-07 | Electric fan and casing thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/808,198 US20080303366A1 (en) | 2007-06-07 | 2007-06-07 | Electric fan and casing thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
US20080303366A1 true US20080303366A1 (en) | 2008-12-11 |
Family
ID=40095209
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/808,198 Abandoned US20080303366A1 (en) | 2007-06-07 | 2007-06-07 | Electric fan and casing thereof |
Country Status (1)
Country | Link |
---|---|
US (1) | US20080303366A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111183051A (en) * | 2017-10-05 | 2020-05-19 | 株式会社电装 | Air conditioning unit for vehicle |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6592327B2 (en) * | 2001-08-17 | 2003-07-15 | Quanta Computer, Inc. | Hot swap fan module |
US20030161103A1 (en) * | 2002-02-28 | 2003-08-28 | Wrycraft Sean Conor | Cooling units |
-
2007
- 2007-06-07 US US11/808,198 patent/US20080303366A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6592327B2 (en) * | 2001-08-17 | 2003-07-15 | Quanta Computer, Inc. | Hot swap fan module |
US20030161103A1 (en) * | 2002-02-28 | 2003-08-28 | Wrycraft Sean Conor | Cooling units |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111183051A (en) * | 2017-10-05 | 2020-05-19 | 株式会社电装 | Air conditioning unit for vehicle |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: TOPOWER COMPUTER INDUSTRIAL CO., LTD., TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CHEN, MICHAEL;REEL/FRAME:019446/0985 Effective date: 20070511 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |